Adjustable support for metal-working tools.



BFJEEVED FER 20, i906: v B. M, Wn ANSN.

ADJUSTABLE SUPBT FR. ME''L WRCIG Tn@ Hummm .FuE-.D HOV. 29,1902( No.813,331, PATENTBD FEB. zo, 190e.

B. M, WgHANsoN. ADJUSTABLE SUPORT ma METAL WUREING TOOLS.

AFPLIGTIO FILED H-OV. 29,1902,

f1 SHEETS--SLEET 2 PATENTED FEB. 20, 1906. Bs W. HANSON., ABJUSTLLESUPPORT FUR METAL WGRKNG TGGLS.

APPLICATIGI? .FLED NOV. 29,1902.

SHEDTEPSHEET `3.

Nmwei. H PATENT@ ma. ze, 1906.

E. 'wi HANSUN. MUSMBLB www? ma METAL maxim@ APLIGATION FILED NOV.29,1902l 4 SHEETS-SHEET i No.V 813.381.

Original applicatif1 ile July 12,1902, Serial No. 1.1.5;337, Dvialozl:md thin epplirmtinn. Filed lecfemeei: 29; 160,11. erie 155W.

T LZZ whom, it may concern:

Be it known that l, il'. FL/ Hemos; e citizen of Sweden, resid'. etltler''orrl, .in the county of Hertford and Stime of Comme sie eut, haveinventefl eeruein new and ai l improvements in Adio, .able lupports forMetal-Working Tools, of which tire following is e specification.

My invention relates to adjustable sup loA orts` for rnetel-Workimgtools of various inds-ee, for instel/ree, milling; Millers, grindingendbu'iing (lieke,v emi sammy wels and eontriVen-ees in. the'use of" whehit.v Deny be desired 'to set tit-.e tool et differ, angles with relationte the wiforl.. y

'AS shown, the ejusmble oolesupper'. ries the arbor :mel gearing for drilg; me same of a'rrrlling-euter, efl. pl;e l i emplicetion given to formworms, or spirals on steek held in e suitable erucl'.

Primarily the objeet or the'invenbien ij? e provision of ineenswhereliiy the looiopere may be adjusted te the angie requi roi e,

given' oiteh of thread or spiral 1mi Lia-eri. se cured mlym position. -lA further object ot the H11/'emma le the provision of a. tooksupporumouneeri on 'nions, whereby it may lie sdjused to 4 the wol at thedesired angle, emi of meer preferably ooperatingrwith one of the trennions, for securing Seifi support in s v justerl position.

Referring to the drawings, Figure E is aside elevation of anietelwvorkiug rxieel'iine i, ilye my invention in position ou the carrithereof. Fig. 2 is a. side View oi the me which the improved tioobsupporis n the Work being shown in section. if:

horizontal SectionV teken on ,line je :12 with parts shown in elevation.'perspeetiveview of the cutter-slide l elements with parte broken ewey,and i4` is a detail perspective View ol one of the nions and ltsretaining-smear Like nurnerels deeigyriee throu hout the several views..Referring to the drawing@ lesignntes the 'frame or bed of xenium@ whichmay be lof may desired S33 e ...nel e@ i struction. Rising from lvl'ihbe@ ere iieels 1f and 3, respectively, in the former ofjfiiier`journnled e chunk-'spindle 4r and in the leem l 'Tl v` l simmer we vllmili tire irai; 22 ie llir brews 2.5, elle heed,- ree-ess ermeri in neerm, el. e. or W e nereirmfim described, eeifi ser *he 5ml: to seid ermel uit; n ne me me, efe.. e.. is. e ennemie is sf l shown) actuated byashaft required, and thefobjeet of the construction bearing extension il,and thereby cause the A hns( IThis improved follow steady restconstiili'io'n this shalt 30 a. spur-pinion 32,1the teeth ol which arein engagement with a larger spur-i'iinion 33,-carried upon a shaft Bei,journeled in bearings of the adjustaible "ruine 28. ,y -i

NDesignated by the liguri/eral is, a shaft to which the tool 36 (shownasa milling-cutter) is secured, and this shaft is -lso journaleil in abearing of the adjustable frame and carries n, pinion 37 in engagementwith the large gear 33, as illustrated in FigQjS. lt is lcsirable attimes to vary' the position ol the cut ter with relation to the Work,sothnt it may be set at rlii'lerent inclinations thereto when justdescribed is to enable this result to be effected in n reliable, quick,and convenient manner.

rlhreaded upon the sleeve 13 exterior of the bearing' extension 11 is anut 38, provided with openings-38 in its periphery, in which a tool maybe inserted to turn said nut, and between this nut and the end of saidbearing extension 11 is a Washer 39. l

When it is desired to Vary the angular relascrew 2li are loosenedsuiiiciently to permit the cutter-frame 28 to be tilted to the desiredposition, the sleeve 13 and hub 22 attached, respectively, to said frameby keys 40 and screws 25, rocking in .their seats or bearings,

anni after thedesired adjustment has been .attained vthe n ut 5381sturned against the washer 3) to force the saine against the end of thebearing 26 of snirl frame to be brought tightly against seid extensionl1, and the screw 24 is also turned to cause the 'bearing 27 to bebrought into close contact with the bearing exto. ion 12.

if o sustain the work and prevent it from springing'while the tool 35 isinv operation thereon, n. follow or steady rest (designated in a generalway by e2) may be employed, the l oi said steeuyhrest tbeing fitted upona guidefif of the slirle 10, adjustable upon ways of the carriage, andsuitable means (not effi, having e hanzlle 45, being; employed forsecuring the base oit the steady-rest alter adjustment'. ln nrecess orthe stend ard le of said steadv-rest is littefl p:irtially-cylinziiriealopen bus ring 47, secured in piece by a pin 48, i'nissingthrough thestendere, as illustrated in FigsQ and 3.

io purt of the misent.iii'ventioin it beforti "ind claimed in myconcurrently .ng implication, Serial lilo. lfl( 7.-l For advancing andretractiiw the'carriiige 7 upon the slienrs el lied any ilesire'rlineens may be en'iployedv--ior instance, n lead-screw 49, (see dottedlines, Fie. 1,) and for nctuat. ing this lead-screw a change-,gear trainof gears 5U, driven from the chuck-spindle 4, may be utilized', as setl'orth in my application l filed July 12, 1902., Serial No. 115,337, ofwhich the present case is a division.

To provide for adjusting the cutteieirinne to set the cutter accuratelyat the desired enqle for any given spiral, greduations 51 are ormed onthe arm of said freine, as shown in Figs. and 4.

For adjusting the cutter-slide 10 to cause the cutter to form the threador spiral to the correct depth a screw 52, having a inicromen ter-heed53, is employed, as shown in Fig. 1.

To protect the OVearing and shafts of the cutter-driving mec ianisin,lthey are inclosed `by a hood or casing 54, as shown in Figs. 1

and 4.

Operation: .Work linished to size for the required' diameter of thespiral to be cut is placed in chuck 4 and supported at its rear end oncenter 5 and screw 52 is turned t0 ed- -just slide 1() until a ytooth ofAthe cutter 36 just touches the work, and the mibroineter 53 is set toZero. Adjustment of the carriage'? along the machine-bed is then madeuntil the tooth othe`cutter passes beyond the end of the Work, and thecutter-slide is advanced by screw 52 until the correct depth of thespiral to be formed. is indicated by the micrometer, this depth beingdetermined by a scale-table furnished with the machine, and said slideis then clamped rigirlly'in position by a screw 55.- Then with theproper gearing in place in train 5() the inaehine is set into operationand the cutter commences, its work, suitable stop and clutch shiftingniechanisrnswlor instance, those set forth `.in Ymy a plicationaforesaid, but not herein showne eing employed to control the movementof ter-slide.A By tilting the frane 28 upon its trnnnions (the gear '31rotating over pinion 15) and then clam ing it in position by the ineensdescribed t ie'cutter may be readily set at the desired angle for thegiyen pitch of thread, and as the axis of the cutter intersects the exisor' the frame and the pointof intersection is in the same horizontalplane as that of the axis of the s irai to be formed and in the sainever ical ane as the exis of the trnnnions 13 and 22 t e mints of thecutter-teeth While in action will always be level with the axis of theWorksnotwithstanding the angle to which the cutter may have beenadjusted. .in other words, the center line of the cutter 36 is in thesame horizontal plane as the center line of the screw to be cut und inthe saine vertical plane as the center line through the trunnions,whereby no matter to what angle the cutter may be set the point of thecutting tooth is always level with .the center line oi; the work.

While the machine is shown in :position for cutting right-hand spirals,yet it canrenclily be adapted for cutting lel't-hand ones by meltingsuitable changes in the geur-trein 5() and swinging the cutter-frame 28over' to. the opposite engle.- So, too, il it is desired to the cut- ICOnaled in bearings pf said standards, one of nion, and serving to drawthe same Within bore of the other trunnion, and

` special means for actuating said devices.

4tween said standards; bearin s of the standards, one 'of said trimshaftjouriialcd in the cutter-frame and havsiasei cut toward the tail-stockthis may be accomplished by reversing the motion of the leadscrew.

' From what has been stated it will be seen that a universel machinecapable of forming all kinds of spirals-such, for instance, asprecision-screws, lead and fecd screws, thrustscrews, and spiralgears-is provided, said machine being composed of comparatively. fewparts and beinU simple and compact in construction and re iable inoperation.

Changes may be made in many of the details of construction withoutdeparture from the invention, which is not limited to the exact devicesshown and described nor to any Having thus described my invention, whatI claim is 1, The combination, with a slide having bearings, of anadjustable cutter-frame having trunnions journaled in said 4Jbearings;means for fixing the frame in position after adjustment; a pair ofshafts journaled in the cutter-frame; a gear secured to each of saidshafts; a gear journaled in the cutter-frame intermediate to, and in'mesh with, the shaftgears; a shaft passing through one of the trunnionsand carrying a gear for driving one of the pair of shafts; and amilling-cutter secured to one of said shafts, the axis of saidmillingcutter intersecting the axis of the cutter-frame, and the pointof' intersection being in the same horizontal plane as the work-s indie.i

2. T e combination, Witha slide havingr standards, of an adjustablecutter -fra1ne; trunnions carried by said frame and joursaid trunnionsbeing externally threaded and the other provided with a threaded bore; anut upon t e externallythreaded trunthe threaded having a head bearingagainst one of the standards; a rotary cutter carried by thecutter-frame; and means for actuating said cutter.

3. In .a machine of the class specified, the combination, withatool-carriage having standards, of a cutter f 'i'raine locatedbetruniiions fitted. in

its bearing; a screw engaging nions raving a longitudinal bore; a shaft`mounted in said bore; means for rotatingsaid shaft; a fear secured tosaid shaft; a

ing-a pair of gears. one of which is in mesh with the gear on the shaftmounted in the bore of said truniiion; a second gear jouriialed in theframe and engaging the other oi i said pair of gears; a cutter-shafthaving a gear in mesh with said second. gear; and a milling-cuttersecured to the cutter-shaft.

4. rlhe combination, with a support, of a cutter-frame; trunnionsprojectin(r from said frame and entering bearings ci7 the support, oneof said trunnions having a hollow portion with an internal thread. gscrews for securing said internally threaded trunnion to the support;and a screw engaging the thread of said tiunnion and having a bearinoagainst the support.

5. rl` e combination, with a support, having standards provided withbearings, of a chambered frame having fixed trunnions mounted in saidbearings, one of said trunnions being tubular; means applied to eachtrunnion for securing the frame against movement; a driven shaft passingthrough the tubular trunnion; a bevelinion on the end of said drivenshaft; a shaft journaled in the frame; a bevel-gear in en agement withsaid bevel-pinion, and carried y said shaft; gearing mounted in achamber of the frame a cutter-spindle driven bysaid gearing and a millin-cutter secured to said cutter-spindle.

n a machine of the class specified, the combination, with a supporthaving standards provided With bearings, of a frame having fixed a nutthreaded on one of said trunnicns at the outer side ofone of thebearings: a screw tapped into theth'er trunnion and having head bearingagainst the inner side 6i' the standard in the bearing of which saidtrunnioii is mounted; a tool-spindle jourhnaled in `the frame; and means'for driving said toolspindle.

head

7. in a machine of theclass specified, the

combination, with means for supporting and rotating work, of areciprocatory carriage; a slide transversely adjustable on saidcarriage, and having standards provided with bearings; va 'frame .havingfixed trunnions journallied in said bearings, one of said trimnionsbeing tubular; means; for securing the frame against the fstandards; ashaft jouinaled in the tubula'L trunnion; a bevel-pinion secured to saidshaft; a shaft jeurnaled in the frame a bevel- Year on said shaft; aspurpiiiion also on said shaft; a spur-wheel; a cutter-spindle Icarryinga spurinion in engagement with said spur-Whee anda millingcuttei carriedby the cutter-spindle.

.in testimony whereof l ailix my signature in presence of two witnesses.

, BENGT M. W. l'iANSON. Witnesses: D

C. S, Goonaicii, Il. E. BAiLiir.

IIO

